CN201866301U - Position conveniently-adjusted structure of valve plate for butterfly valve - Google Patents
Position conveniently-adjusted structure of valve plate for butterfly valve Download PDFInfo
- Publication number
- CN201866301U CN201866301U CN2010206249778U CN201020624977U CN201866301U CN 201866301 U CN201866301 U CN 201866301U CN 2010206249778 U CN2010206249778 U CN 2010206249778U CN 201020624977 U CN201020624977 U CN 201020624977U CN 201866301 U CN201866301 U CN 201866301U
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- China
- Prior art keywords
- valve
- valve plate
- butterfly
- screw
- butterfly valve
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a position conveniently-adjusted structure of a valve plate for a butterfly valve. The position conveniently-adjusted structure is arranged at the lower end of an upper valve rod of the butterfly valve which mainly comprises a valve rod, a valve body, a valve plate and a sealing ring assembly; the position conveniently-adjusted structure comprises an end cover, a screw and a cap, wherein the end cover is fixedly connected to the valve body; the screw and the cap are mounted on a center axial line of the end cover through threads; and the upper end of the screw is supported against the lower end of the valve rod. The position conveniently-adjusted structure can be used for quickly and conveniently adjusting, ensures the sealing property of the butterfly valve and is suitable for the butterfly valves in various specifications; and the valve plate can be easily and better matched with the sealing ring assembly by adjusting.
Description
Technical field
The utility model relates to a kind of valve plate position adjustment structure, and specifically, the utility model relates to a kind of butterfly valve plate position adjustment structure.
Background technique
The keying of butterfly valve is by the axis rotation around himself in valve body of a discoidal valve plate, thereby reaches the effect that opens and closes or regulate butterfly valve.In this process, the situation that cooperates of seal ring has determined the seal degree of butterfly valve in valve plate and the butterfly valve, if valve plate overlaps substantially with the seal ring center, then cooperates situation better, the good airproof performance of butterfly valve; If valve plate and seal ring center contact ratio are bad, then cooperate situation bad, the sealing of butterfly valve is poor.In the using process of butterfly valve, because valve plate and valve rod deadweight cause that the valve plate center moves down, the sealing that valve plate is cooperated with seal ring also can produce certain influence.No matter existing reed valve is in assembling, still in use, all by the position of adjusting valve plate valve plate is overlapped as far as possible with the seal ring center.The butterfly valve plate of prior art is adjusted the lower end that structure is located at the butterfly valve upper valve rod, comprise the end cap that is fixed on the valve body bottom and be placed in end cap and the valve rod lower end surface between the adjustment pad, by adjusting the thickness of pad, raise or the reduction valve rod, thereby adjust the position that is fixedly connected on valve plate on the valve rod.The butterfly valve plate of prior art is adjusted structure can play the effect of adjusting the valve plate position, but each adjustment needs that end cap is pulled down back adjustment and adjusts pad, because the positional error at valve plate and seal ring center is difficult to measure, therefore, adjustment is difficult to hold, sometimes need repeatedly adjustment just can be effective, therefore, adjust more time-consuming, bothersome.
Summary of the invention
The utility model is at the deficiencies in the prior art, propose a kind of simple in structure, adjust efficient and convenient, adjust effective butterfly valve plate position convenient regulating type structure.
The utility model is achieved through the following technical solutions technical goal.
Butterfly valve plate position convenient regulating type structure, it is located at by valve rod, valve body, valve plate and seal ring assembly is the lower end of the butterfly valve upper valve rod formed of main member, its improvements are: comprise the end cap that is fixedly connected on the valve body, by screw thread be installed on the end cap central axis screw and and cap, the upper end of described screw withstands on the lower end of valve rod.
In the said structure, the screw thread on the described screw is a fine thread.
The utility model compared with prior art has following good effect:
1. simple in structure, easy to manufacture;
2. when needing to adjust, need not to pull down end cap, as long as unclamp and cap, rotating screw just can raise or reduce valve rod, thereby adjusts the position that is fixedly connected on valve plate on the valve rod, therefore adjust quick and easy, but the limit is adjusted, and the limit is observed valve plate and cooperated situation with seal ring, therefore makes valve plate and seal ring reach the reasonable situation that cooperates than being easier to by adjustment.
Description of drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is Fig. 1 left view.
Embodiment
The utility model is described in further detail with reference to the accompanying drawings and in conjunction with the embodiments below.
Butterfly valve plate shown in the drawings position convenient regulating type structure, it is located at the lower end of the butterfly valve upper valve rod of being made up of for main member valve rod 1, valve body 2, valve plate 6 and seal ring assembly 71, comprise the end cap 3 that is fixedly connected on the valve body 2, by screw thread be installed on end cap 3 central axis screw 4 and and cap 5, the upper end of screw 4 withstands on the lower end of valve rod 1; Screw thread on the screw 4 is a fine thread.When needing to adjust, need not to pull down end cap 3, as long as unclamp and cap 5, rotating screw 4 just can raise or reduce valve rod 1, thereby adjusts the position that is fixedly connected on valve plate 6 on the valve rod 1, therefore adjusts quick and easy; Screw thread on the screw 4 is a fine thread, can make adjustment more accurate; During adjustment, cooperate situation with seal ring assembly 7, therefore make valve plate 6 and seal ring assembly 7 reach the reasonable situation that cooperates by adjustment, guarantee the sealing of butterfly valve than being easier to but observe valve plate 6 while adjusting.
Claims (2)
1. butterfly valve plate position convenient regulating type structure, it is located at the lower end of the butterfly valve upper valve rod of being made up of for main member valve rod (1), valve body (2), valve plate (6) and seal ring assembly (7) (1), it is characterized in that: comprise the end cap (3) that is fixedly connected on the valve body (2), by screw thread be installed on end cap (3) central axis screw (4) and and cap (5), the upper end of described screw (4) withstands on the lower end of valve rod (1).
2. butterfly valve plate according to claim 1 position convenient regulating type structure is characterized in that: the screw thread on the described screw (4) is a fine thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206249778U CN201866301U (en) | 2010-11-25 | 2010-11-25 | Position conveniently-adjusted structure of valve plate for butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206249778U CN201866301U (en) | 2010-11-25 | 2010-11-25 | Position conveniently-adjusted structure of valve plate for butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201866301U true CN201866301U (en) | 2011-06-15 |
Family
ID=44137457
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206249778U Expired - Fee Related CN201866301U (en) | 2010-11-25 | 2010-11-25 | Position conveniently-adjusted structure of valve plate for butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201866301U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102788156A (en) * | 2012-08-29 | 2012-11-21 | 安徽红星阀门有限公司 | Butterfly valve with regulating device |
-
2010
- 2010-11-25 CN CN2010206249778U patent/CN201866301U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102788156A (en) * | 2012-08-29 | 2012-11-21 | 安徽红星阀门有限公司 | Butterfly valve with regulating device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110615 Termination date: 20111125 |